Percent Yield Notes

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Multiple Choice

What is the formula for percent yield?

• $$\frac{Actual}{Theoretical}\times100$$
  

• $$\frac{Theoretical}{Actual}\times100$$
  

• $$\frac{Actual\times Theoretical}{100}$$

• $$\frac{100}{Actual\times Theoretical}$$

Multiple Choice

The ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect setting

• Percent
• actual
• stoichiometry
• theoretical

Multiple Choice

Which of the following do you get through measuring its mass? (No calculations)

• percent yield
• theoretical yield
• actual yield
• limiting reagent

Multiple Choice

Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.

• 1.16%
• 116%
• 85%
• 76%

Multiple Choice

When reacting Na with Cl₂, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12.5 grams. What is the percent yield?

• 90.4%

• 104%

• 96.15%

• 1.04%

Multiple Choice

CH₄  +  2O₂  →  CO₂  +  2H₂O
24 grams of CH₄ was added to the above reaction. Calculate the theoretical yield of CO₂.

• 66 grams
• 132 grams
• 33 grams
• 8.72

Multiple Choice

P₄ + 6Cl₂ --> 4PCl₃ 
The reaction of 75.0g P₄ with excess chlorine gas produces 110g PCl₃ in lab. Find the theoretical yield and calculate percent yield for the reaction. 

• 78%
• 64%
• 27%
• 33%